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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
Empowering the next generation: ANS’s newest book focuses on careers in nuclear energy
A new career guide for the nuclear energy industry is now available: The Nuclear Empowered Workforce by Earnestine Johnson. Drawing on more than 30 years of experience across 16 nuclear facilities, Johnson offers a practical, insightful look into some of the many career paths available in commercial nuclear power. To mark the release, Johnson sat down with Nuclear News for a wide-ranging conversation about her career, her motivation for writing the book, and her advice for the next generation of nuclear professionals.
When Johnson began her career at engineering services company Stone & Webster, she entered a field still reeling from the effects of the Three Mile Island incident in 1979, nearly 15 years earlier. Her hiring cohort was the first group of new engineering graduates the company had brought on since TMI, a reflection of the industry-wide pause in nuclear construction. Her first long-term assignment—at the Millstone site in Waterford, Conn., helping resolve design issues stemming from TMI—marked the beginning of a long and varied career that spanned positions across the country.
Teng Wang, Yanlan Hu, Huajun Liu, Yu Wu, Yi Shi, Chao Pan, Longgui Zheng
Fusion Science and Technology | Volume 74 | Number 3 | October 2018 | Pages 229-237
Technical Note | doi.org/10.1080/15361055.2017.1415613
Articles are hosted by Taylor and Francis Online.
The Central Solenoid Model Coils (CSMC) project (2014 to 2018), a part of the National Magnetic Confinement Fusion Science Program, is being developed by China independently under one of the largest research and development activities of the China Fusion Engineering Test Reactor (CFETR), demonstrating and validating the engineering design criteria of the CFETR central solenoid (CS) coil. The expected achievement is to charge the coil up to the operation current of 47.3 kA and the maximum magnetic field to 12 T with a swift rump rate of 1.5 T/s without quench. The quench detection shall be fast enough to dump out the magnetic energy and avoid irreversible damage to the systems. It is expected to provide the validation of design and analysis tools and the demonstration of quench analysis methods in the quench detection of the CFETR CS and the poloidal field (PF) magnet system.
Quench detection by voltage measurements is likely to be the fastest available technical solution, but the voltage detection is a real challenge due to large noise induced by the power supply in alternating current operation. Specific solutions have been proposed for the voltage compensation to effectively reduce the large inductive components from the measured voltage to a certain level. In 2016, the conception design was completed and adopted after the domestic and foreign experts review. This technical note gives an overall view of the quench detection design applied to the CSMC and its numerical results developed, including the classical hot-spot criterion, the quench propagation study, the quench detection parameter settings using the commercial code Supermagnet, and the estimation of the inductive disturbances.
